Question

when you soon a top, it spins and may also moves around. what kinds of motion does a such top have?

Answer 1

The top usually has an initial translational velocity while being launched. Thus, due to momentum, it continues to have both rotational and translational motion.
Now, assuming there is no initial translation except perfectly downward, and it is launched on a horizontal rough surface, following is my opinion:
if the tip is perfectly sharp and the top is perfectly balanced, it would only rotate on the same point without buldging.
Now if it really has to slip, it's tip should be slightly flattened, making it roll like a wheel.
Even with a flat tip it could rotate on the same spot if it doesn't happen to tilt.
So, any ideal top must not move around even with a flat tip under the above assumptions..

Please correct me if I'm wrong... I'll be happy to learn something new :)

Answer 2

here is ur ans. .......